Waste gas control valve performance testing device and testing method thereof

Abstract

The invention discloses a waste gas control valve performance testing device which is matched with a PC (personal computer) for use and comprises a waste gas control valve, a gas inlet pipeline, a gasinlet pump, a gas outlet pipeline and a simulation supercharger device, wherein the gas inlet pipeline and the gas outlet pipeline are equipped with pressure detection devices; the pressure detectiondevices are in signal connection with a signal processing and output device; and a signal output end of the signal processing and output device is connected to the PC. The invention further disclosesa particular testing method. Connection is simple; during use, the waste gas control valve to be tested is only required to be connected between the gas inlet pipeline and the gas outlet pipeline; atthe same time, the portable PC is connected with the signal processing and output device; operation is simple; performance testing of the waste gas control valve can be finished only by adjusting anoutput signal of the signal processing and output device; performance comparison of multiple waste gas control valves can also be achieved; a zero kilometer failure rate is reduced; the performance ofthe waste gas control valve in use can also be tested at any time to evaluate a failure rate risk of the waste gas control valve; and reduction of service and maintenance cost is facilitated.

Description

technical field [0001] The invention relates to the technical field of testing engine accessories, in particular to a performance testing device for an exhaust gas control valve, and also relates to a specific testing method for the testing device. Background technique [0002] The exhaust gas control valve is one of the indispensable parts in the exhaust gas recirculation system of the engine. The exhaust gas control valve is equipped with an air inlet, an air outlet and a pressure relief hole. The exhaust port of the exhaust gas control valve is connected with the bypass valve of the supercharger. , and adjust the exhaust pressure of the outlet port through the PWM duty cycle to achieve the purpose of controlling the supercharging capacity of the supercharger, so as to cooperate with the variable intake pressure output by the supercharger under the corresponding load of the engine to respond to the engine's different load requirements. [0003] The performance requirement...

AI Technical Summary

Problems solved by technology

[0004] Existing waste gas control valve detection tooling or equipment is limited to the engine test bench, and it needs to be installed and connected to the exhaust gas circulation system of the engine to complete the detection task. Therefore, there is no special exhaust gas control for natural gas engines Performance test system for valve use

Moreover, the above-mentioned testing facilities are limited to daily engine maintenance or fault detection, so the testing function is single, and the performance comparison of various exhaust gas control valves cannot be completed at the same time, which is not convenient for engine manufacturers to quickly select high-quality exhaust gas control valves for use.

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